hypothesis to test

hypothesis to test

In a clinical trial, a statement regarding a possible different effect of the interventions on an outcome. The null hypothesis that there is no such effect is amenable to statistical evaluation by a hypothesis test, which generates a P value.
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Without some theory or hypothesis to test, how is one supposed to know what experiment to conduct?
For pure scientific purposes, here's a valid hypothesis to test conduct a trial on secondary prevention in heart patients with a lifetime of bad habits that likely contributed to their heart disease to determine if a nutrient might provide some benefit But it's not valid to conclude from the results of that study that the nutrient doesn't work.
This interplay of models and observations is proving extremely productive, as in the case of Georges Bank, where we now have a specific hypothesis to test.
Consequently, there is no clear hypothesis to test in this book.
If the "sartan for SARS" hypothesis is confirmed, then an obvious additional hypothesis to test will be "ARBs for ARDS.
Historically much of the research in molecular epidemiology has been opportunistic, driven by what populations were available, what samples have been collected, what could be measured in an available sample; out of that one might develop an hypothesis to test.
The hypothesis to test is that perhaps growth never did pay for itself directly, but was "subsidized" from general tax revenue to a much greater extent than is true today.
Consequently, the first hypothesis to test is the existence of a positive association between the size of the business involved, their export ratio and their profitability.
Consequently, the second hypothesis to test is the existence of a positive link between the export ratio and profitability, confining this study solely to businesses working in a declining home market.
However, the proper hypothesis to test is that the ratio of the between variance to the within variance is zero.